contribution 0204 adding text on how to contribute, changes in theREADME file, and the addition of the LICINSE file

Update Collection Models/ONU Information Collection/ONU local information/an-gpon-pm-onu-line-quality.proto, Collection Models/ONU Information Collection/ONU local information/an-epon-pm-onu-local-info.proto, Collection Models/ONU Information Collection/ONU local information/an-gpon-pm-onu-local-info.proto, Collection Models/ONU Information Collection/ONU remote information/an-gpon-pm-onu-remote-info.proto, Collection Models/ONU Information Collection/ONU remote information/an-epon-onu-transceivers.proto, Collection Models/ONU Information Collection/ONU remote information/an-epon-pm-onu-remote-info.proto, Collection Models/ONU Information Collection/ONU remote information/an-gpon-onu-transceivers.proto files

Update Collection Models/Traffic Collection/an-epon-pm-onu-traffic.proto, Collection Models/Traffic Collection/an-gpon-pm-onu-traffic.proto, Collection Models/Traffic Collection/an-bb-queue-kpi.proto, Collection Models/Traffic Collection/an-bb-service-flow-kpi.proto, Collection Models/Traffic Collection/an-epon-pm-olt-traffic.proto, Collection Models/Traffic Collection/an-ethernet-kpi.proto, Collection Models/Traffic Collection/an-gpon-pm-olt-traffic.proto, Collection Models/Optical Link Information Collection/an-epon-pm-olt-transceivers.proto, Collection Models/Optical Link Information Collection/an-gpon-pm-olt-transceivers.proto, Collection Models/ONU Information Collection/an-epon-onu-transceivers.proto, Collection Models/ONU Information Collection/an-epon-pm-onu-local-info.proto, Collection Models/ONU Information Collection/an-gpon-onu-transceivers.proto, Collection Models/ONU Information Collection/an-gpon-pm-onu-local-info.proto, Collection Models/ONU Information Collection/an-epon-pm-onu-remote-info.proto, Collection Models/ONU Information Collection/an-gpon-pm-onu-remote-info.proto, Collection Models/ONU Information Collection/an-gpon-pm-onu-line-quality.proto files